天津人工海岸吹填土内源污染物分布规律探讨  

Distribution Law of Dredger Fill Endogenous Contaminants in Tianjin Artificial Coastal Zone

作　　者：赵林[1,2] 朱德成[1] 毛国柱[1] 郭华[1] 郑义[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津大学水利工程仿真与安全国家重点室验室,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2014年第5期452-458,共7页Journal of Tianjin University：Science and Technology

基　　金：天津市自然科学基金资助项目(10JCZDJC24700)

摘　　要：为了查明人工海岸吹填土中内源污染物的分布规律和影响因素,对天津围海造陆形成的海陆水交换带吹填土的结构成分、渗透性以及总氮、总磷的分布进行了现场取样分析和室内模拟实验.结果表明:受地下水系统渗透性变化作用,内源污染物具有偏向性分布规律,向海侧高于背海侧;受吹填土自身颗粒结构变化以及离子交换、沉淀反应等理化作用,内源污染物表现为吹填久的区域高于新近吹填区.此研究对人工海岸地下水和海水的水质保护具有实际应用价值.In order to find out the distribution law and the influence factors of dredger fill endogenous contaminants, the structural components, permeability and distribution of total nitrogen and total phosphorus of dredger fill in Tianjin artificial coastal zone were analyzed through field sampling and studied by laboratory simulation tests. The results show that the distribution of endogenous contaminants near seaward side is higher than the backward side because of the influence of the permeability change of the groundwater system, and it increases with time mainly for the reason of micro-structure change and physical and chemical action such as ion exchange and precipitation reaction. This study has a practical application value for protecting artificial coastal groundwater and seawater quality.

关 键 词：人工海岸 吹填土 微观结构 内源污染物 分布规律 

分 类 号：X53[环境科学与工程—环境工程]